Quite a few, but accidentally burning down the privy while trying to drive away an unwanted suitor is pretty close to the top of the list.
When the floor catches fire, Catherine's father leaps into action by... pissing out the fire.
Several of the things that happen to a few of Catherine's other suitors: when one approaches the manor, she pretends to be a villager, and implies that "the Lady Catherine" is a violent lunatic (he turns around right away). There's also her father hurling a chamber pot at one who had brought up the matter of a dowry — it lands on the poor guy's head).
In one of Catherine's entries, she mentions she would rather be a pig boy then her current lot. Acouple entries later, she loses a ring in one of pig pens. She finishes the latter entry with "Definitely Do Not Want to be the Pig Boy".